Pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen

A protein content, yellow catfish technology, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as feeding growth restriction, inability to effectively use protein, etc., to save feed costs, solve water quality deterioration, and reduce nitrogen emissions Effect

Inactive Publication Date: 2018-11-13
INST OF AQUATIC LIFE ACAD SINICA
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Problems solved by technology

[0008] According to the previous research results, the suitable water temperature and dissolved oxygen for the cultivation of yellow catfish were determined. Under the conditions of suitable water temperature and dissolved oxygen, yellow catfish has a higher feeding rate and specific growth rate. At this time, feeding high protein content feed can be Maximize the use of high-quality protein in the feed; when the water temperature is too high, too low or the dissolved oxygen is low, the feeding and growth of the yellow catfish are restricted, and the protein in the feed cannot be effectively used. It can meet the protein demand of peltrelative catfish, save feed cost, and reduce the nitrogen discharge of aquaculture wastewater, effectively solve the problems of water quality deterioration and fishery pollution caused by feed waste in the aquaculture process, improve feed conversion efficiency, and achieve energy saving and emission reduction , green and safe, with significant economic and environmental benefits

Method used

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  • Pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen
  • Pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen
  • Pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1 selects wherein 40 days in the whole breeding cycle of the experimental pond of the present invention, introduces in detail every day temperature, dissolved oxygen change and feed throwing and feeding situation (table 1), provides demonstration for popularization and application of the present invention. From September 11, 2017 to October 20, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu Province, during this period, the water temperature showed a gradual downward trend, and the dissolved oxygen changed frequently. Select No. 1 experimental pond (7 mu, east-west direction, 90 meters long, wide 52 meters, water depth 2 meters) and contrast pond (7 mus, east-west direction, long 90 meters, wide 52 meters, water depth 2 meters). During the breeding period, real-time monitoring of pond water temperature and dissolved oxygen was carried out to the experimental pond every day. When the average water temperature of the pond was T A (the average wa...

Embodiment 2

[0030] On June 7, 2016, in Liuhe Town, Taicang City, Suzhou, Jiangsu Province, a 10-mu pond (east-west direction, length 110m, width 60m) and a water depth of 2 meters was selected as the experimental pond, numbered No. 2, and another 10-mu pond was selected. (east-west direction, length 95m, wide 70m), the pond of 2 meters of depth of water is as contrasting pond; After the normal clearing pond, all puts in a suitable place to breed 15000 end / mu of yellow catfish summer flowers; During breeding, carry out real-time monitoring pond water temperature and Dissolved oxygen, when the pond's average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with ...

Embodiment 3

[0032]On June 12, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu, a 10-mu (east-west, length 110m, width 60m) pond was selected as the experimental pond, numbered No. 3, and another 10-mu (east-west, length 95m, wide 70m) pond as the control pond, the water depth is 2 meters; after the normal clearing of the pond, 18000 summer flowers of yellow catfish / mu were stocked in the two ponds at the same time. During the breeding period, the pond water temperature and dissolved oxygen were monitored in real time every day. Pond average water temperature T A (the average water temperature from the last feeding to this time) and the average dissolved oxygen DO A (the average dissolved oxygen from the last feeding to this feeding) satisfying 23℃≤T A ≤30℃, and DO A When ≥4mg / L, the feed with protein content of 42% was fed, and the rest were fed with feed with protein content of 38%; the control pond was always fed with 42% high-protein feed; Large selection of palatable...

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Abstract

The invention discloses a pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen, and relates to a pelteobagrus fulvidraco feeding pattern in aquaculture. The feeding pattern is to monitor the water temperature and dissolved oxygen in the pond every day, when the mean water temperature TA and the mean dissolved oxygen DOA meet 23 DEGC<=TA<= 30 DEG C, and DOA >= 4mg/L, high protein content feed is fed, and low protein content feed is fed for the rest conditions; the protein content of the high protein content feed is 42% and the protein content of low protein content feed is 38%, both of them are palatable puffing feed. The pelteobagrus fulvidraco feeding pattern with different protein contents under various temperature and dissolved oxygen has extensive experimental basis and scientific basis to meet the nutritional requirements of the growth of pelteobagrus fulvidraco, and can reduce the cost of aquaculture effectively and reduce the waste of feed, and improve the economic benefit of aquaculture and effectively reduce the nitrogen emission in aquaculture water; the operation method is simple and clear, and has the prospect of demonstration and easy promotion.

Description

technical field [0001] The invention relates to a feeding mode for yellow catfish cultivation in the field of aquaculture, in particular to a feeding mode for adjusting the temperature and dissolved oxygen of the yellow catfish to adjust feeds with different protein contents. Background technique [0002] Pelteobagrus fulvidraco (Richardson), belonging to the order Silurformes, the family Bagride, and the genus Pelteobagrus, is endemic to East Asia and is a carnivorous bottom-dwelling fish commonly found in rivers and lakes in my country , its tender meat, delicious taste, and no intermuscular thorns have won the favor of consumers. In recent years, yellow catfish has been developed into a famous and high-quality freshwater aquaculture species with high economic value, and large-scale artificial breeding has been carried out in many parts of the country. [0003] However, its typical high-density, high feed rate, and high water exchange rate farming methods often result in l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 张磊王一亭程飞谢松光
Owner INST OF AQUATIC LIFE ACAD SINICA
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